From c644db3d53c90ef569ff5a90e9f821b88e7123bb Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Tue, 6 Apr 2010 15:30:14 +0200 Subject: [PATCH] qcow2: Remove request from in-flight list after error If we complete a request with a failure we need to remove it from the list of requests that are in flight. If we don't do it, the next time the same AIOCB is used for a cluster allocation it will create a loop in the list and qemu will hang in an endless loop. Signed-off-by: Kevin Wolf Signed-off-by: Aurelien Jarno --- block/qcow2-cluster.c | 1 + block/qcow2.c | 6 +++++- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/block/qcow2-cluster.c b/block/qcow2-cluster.c index b13b6935f8..c7057b1664 100644 --- a/block/qcow2-cluster.c +++ b/block/qcow2-cluster.c @@ -811,6 +811,7 @@ int qcow2_alloc_cluster_offset(BlockDriverState *bs, uint64_t offset, cluster_offset = qcow2_alloc_clusters(bs, nb_clusters * s->cluster_size); if (cluster_offset < 0) { + QLIST_REMOVE(m, next_in_flight); return cluster_offset; } diff --git a/block/qcow2.c b/block/qcow2.c index b44a12cdeb..4e97eb605d 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -625,11 +625,15 @@ static void qcow_aio_write_cb(void *opaque, int ret) qcow_aio_write_cb, acb); if (acb->hd_aiocb == NULL) { ret = -EIO; - goto done; + goto fail; } return; +fail: + if (acb->l2meta.nb_clusters != 0) { + QLIST_REMOVE(&acb->l2meta, next_in_flight); + } done: if (acb->qiov->niov > 1) qemu_vfree(acb->orig_buf); -- GitLab